Holdback-coupling.



No. 664,999. Patented Jan. I, I90L W.'B. GUBRELL.

HOLDBA6K COUPLING.

{Application filed Apr. 12, 1900.)

(No lludal.)

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UNITED STATES PATENT OFFICE.

WILLIAM R. GORRELL, OF HAVRE DE GRACE, MARYLAND",- ASSIGNOR OF ONE-HALF TQ SAMUEL JAY, OF ABERDEEN, MARYLAND.

HOLDBACK-COUPLING.

SPECIFICATION forming part of Letters Patent No. 664,999, dated January 1, 1901.

Application fil d April 12, 1900. Serial No. 12,571. (No model.)

To aZZ whom it may concern:

Be it known that 1, WILLIAM R. GORRELL, a citizen of the United States, residing at Havre de Grace, in the county of Harford and State of Maryland, have invented certain new and useful Improvements in Holdback-.

Couplings; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to holdback-couplings for vehicles.

The object of the invention is to provide a device of this character which shall be simple in construction, durable in use, and comparatively inexpensive of production, which may be easily and quickly attached to the shafts of vehicles now in general use, and by means of which much time and labor are saved, as

well as annoyance overcome in attaching the breech or holdback strap to the shafts.

With these as well as other objects in View the invention consists in certain features of construction and combination of parts, which will be hereinafter fully set forth.

In the accompanying drawings, Figure l is a perspective view illustrating my invention attached to a strap and showing the breech or holdback strap in position. Fig. 2 is a top plan view of the coupling. Fig. 3 is a rear end view of the same, and Fig. 4 is a longitudinal sectional view.

In the drawings the same reference characters indicate the same partsof the invention.

1 denotes the body of the coupling, to which is cast or otherwise secured a tubular portion 2, provided in its outer side with a longitudinal slot 3, intersected at its ends by vertical slots 4 and 5.

6 denotes a longitudinal slot extending inwardly from the rear end of the body, and 7 denotes an alined slot at the rear end of the tubular portion. This latter slot communicates with the bore of the tubular portion and leads to a vertical slot 8, formed in the side of the body and tubular portion in line with the slot 5 and establishing a communication between the bore of.the tubular portion and the longitudinal slot 6 in the body.

9 denotes an apertnred ear projecting downwardly from the lower end of the body. 10 denotes a rest or guide bar connecting the forward end of the tubular portion to said ear 9.

l1 denotes a sliding bolt, and 12 denotes a headed pin preferably cast integral with the bolt. The bolt is adapted to be shot across the space between the forward end of the tubular portion and the ear 9 to hold the breech-strap to the shaft, and when it is desired to release the breech-strap from the shaft the bolt is adapted to be shot rearward to withdraw its forward end from the loop of said strap. When the bolt is in engagement with the strap, the pin is turned down into the slot 4, thus preventing the longitudinal movement of said pin, and when the pin is in its contracted position it is engaged with the slot 5.

In assembling the partsthat is to say, in placing the bolt in its operative positionthe body 1 is held in one hand and the rear end of the bolt in the other, with the pin projecting vertically. In this position the forward end of. the bolt is inserted into the rear end of the tubular portion, and as it is pushed forward the pin slides through the slots 6 and 7 until it is opposite the slot 8. The bolt is now rotated to spring the pin down through said slot8 into the slot 3 or 5. After the bolt has thus been placed in position the body is secured to the under side of the shaft in any suitable manner and it will be impossible for the pin to become disengaged.

In operation, when it is desired to fasten the breech-strap to the shaft the loop of the strap is inserted under the shaft between the ear 9 and the forward end of the tubular portion and is supported inthis position by the bar 10. The pin in the bolt is now grasped and the bolt is shot forward through the loop in the strap, and the pin is-then given a slight turn down, which brings it into the slot or notch 4, in which position the bolt will be retained and the breech-strap be securely held in its connection with the shaft.

From the foregoing description, taken in connection With the accompanying drawings, the construction, operation, and advantages of my improved hold back-couplings for vehicles will be readily apparent without requiring an extended explanation.

It Will be seen that the device is simple of construction, that the said construction permits of its manufacture at small cost, and that it is exceedingly-Well adapted for the purpose for which it is designed.

Various changes in the form, proportion, and the minor details of construction may be resorted to Without departing from the principle or sacrificing any of the advantages of this invention.

Having thus fully described my invention, What I claim as new, and desire to secure by Letters Patent, is

1. A holdback-coupling comprising a body portion provided with a perforated ear and with a tubular portion provided With a longitudinal slot in its side intersected by vertical slot-s, a bolt adapted to slide through said tubular portion and have its forward end engage the aperture in the car, a guard or bar connecting the ear with the forward end of the tubular portion, and a pin connected to said bolt by means of which the latter is operated, substantially as set forth.

2. A holdback-coupling oomprisinga body, a tubular portion secured to the under side thereof, a perforated ear secured to the under side of the body portion, the tubular portion being provided With a longitudinal slot in its side intersected by vertical slots, the body portion and the tubular portion being provided with alined and registering longitudinal slots intersected by a vertica1 communicating slot, a bolt adapted to slide within said tubular portion and engage the perforated ear, and a pin projecting upwardly in said bolt and provided With a head of greater diameter than the Width of the vertical slot connecting the longitudinal slots of the body and tubular portion,substan tially as set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WILLIAM R. GORRELL.

Witnesses:

WM. H. JAooBs, CHAS. II. J ACOBS. 

